Thanx guys. I used to borrow a friends pump in Houston, but it was electric, not pneumatic. I always put in on for an hour and then watched gauges another hour for any leakdown. I built my own system. It uses a 1987 evaporator and condensor except its still the old "Long" type compressor and R134.
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69 C10 longbed: 357c.i. /TH400/3.73s/AC/ beige primer/saving $ for paint
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